Java Zip Examples

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1. How to create ZIP file in java

package basics;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipExample {

 void zipFiles(String[] sourcsFiles, String destPath) {
  // Create a buffer for reading the files
  byte[] tempBufffer = new byte[1024];

  ZipOutputStream out = null;
  FileInputStream in = null;
  try {
   // Create the zip file instance.
   out = new ZipOutputStream(new FileOutputStream(new File(
     destPath)));

   // Compress the files
   for (int i = 0; i < sourcsFiles.length; i++) {
    in = new FileInputStream(sourcsFiles[i]);

    // This is to get file name
    String zipEntyname = sourcsFiles[i].substring(sourcsFiles[i]
      .lastIndexOf("/") + 1, sourcsFiles[i].length());
    // Add ZIP entry to output stream.
    out.putNextEntry(new ZipEntry(zipEntyname));

    // Transfer bytes from the file to the ZIP file
    int len;
    while ((len = in.read(tempBufffer)) > 0) {
     out.write(tempBufffer, 0, len);
    }

    // Complete the entry
    out.closeEntry();
    in.close();
   }

   // Complete the ZIP file
   out.close();
  } catch (Exception e) {
  } finally {
   try {
    if (out != null) {
     out.close();
     out = null;
    }
    if (in != null) {
     in.close();
     in = null;
    }
   } catch (Exception e) {
    e.printStackTrace();
   }
  }
 }

 public static void main(String[] args) {
  String[] sourcsFiles = { "C:/temp/one.properties",
    "C:/temp/two.properties" };
  new ZipExample().zipFiles(sourcsFiles, "C:/temp/files.zip");
 }
}

There will be a zip file created at

C:/temp/files.zip